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@ARTICLE{Palleis:904371,
author = {Palleis, Carla and Brendel, Matthias and Finze, Anika and
Weidinger, Endy and Bötzel, Kai and Danek, Adrian and
Beyer, Leonie and Nitschmann, Alexander and Kern, Maike and
Biechele, Gloria and Rauchmann, Boris-Stephan and Häckert,
Jan and Höllerhage, Matthias and Stephens, Andrew W. and
Drzezga, Alexander and Eimeren, Thilo and Villemagne, Victor
L. and Schildan, Andreas and Barthel, Henryk and Patt,
Marianne and Sabri, Osama and Bartenstein, Peter and
Perneczky, Robert and Haass, Christian and Levin, Johannes
and Höglinger, Günter U.},
title = {{C}ortical [18{F}]{PI}‐2620 {B}inding {D}ifferentiates
{C}orticobasal {S}yndrome {S}ubtypes},
journal = {Movement disorders},
volume = {36},
number = {9},
issn = {0885-3185},
address = {New York, NY},
publisher = {Wiley},
reportid = {FZJ-2021-05941},
pages = {2104 - 2115},
year = {2021},
abstract = {Background: Corticobasal syndrome is associated with
cerebral protein aggregates composed of 4-repeat $(~50\%$ of
cases) or mixed 3-repeat/4-repeat tau isoforms $(~25\%$ of
cases) or nontauopathies $(~25\%$ of cases).Objectives: The
aim of this single-center study was to investigate the
diagnostic value of the tau PET-ligand [18 F]PI-2620 in
patients with corticobasal syndrome.Methods: Forty-five
patients (71.5 ± 7.6 years) with corticobasal syndrome and
14 age-matched healthy controls underwent [18 F]PI-2620-PET.
Beta-amyloid status was determined by cerebral β-amyloid
PET and/or CSF analysis. Subcortical and cortical [18
F]PI-2620 binding was quantitatively and visually compared
between β-amyloid-positive and -negative patients and
controls. Regional [18 F]PI-2620 binding was correlated with
clinical and demographic data.Results: Twenty-four percent
(11 of 45) were β-amyloid-positive. Significantly elevated
[18 F]PI-2620 distribution volume ratios were observed in
both β-amyloid-positive and β-amyloid-negative patients
versus controls in the dorsolateral prefrontal cortex and
basal ganglia. Cortical [18 F]PI-2620 PET positivity was
distinctly higher in β-amyloid-positive compared with
β-amyloid-negative patients with pronounced involvement of
the dorsolateral prefrontal cortex. Semiquantitative
analysis of [18 F]PI-2620 PET revealed a sensitivity of
$91\%$ for β-amyloid-positive and of $65\%$ for
β-amyloid-negative cases, which is in excellent agreement
with prior clinicopathological data. Regardless of
β-amyloid status, hemispheric lateralization of [18
F]PI-2620 signal reflected contralateral predominance of
clinical disease severity.Conclusions: Our data indicate a
value of [18 F]PI-2620 for evaluating corticobasal syndrome,
providing quantitatively and regionally distinct signals in
β-amyloid-positive as well as β-amyloid-negative
corticobasal syndrome. In corticobasal syndrome, [18
F]PI-2620 may potentially serve for a differential diagnosis
and for monitoring disease progression. © 2021 The Authors.
Movement Disorders published by Wiley Periodicals LLC on
behalf of International Parkinson and Movement Disorder
Society.Keywords: Alzheimer's disease; PET; corticobasal
syndrome; four-repeat tauopathies; tau.},
cin = {INM-2},
ddc = {610},
cid = {I:(DE-Juel1)INM-2-20090406},
pnm = {5253 - Neuroimaging (POF4-525)},
pid = {G:(DE-HGF)POF4-5253},
typ = {PUB:(DE-HGF)16},
pubmed = {33951244},
UT = {WOS:000647195800001},
doi = {10.1002/mds.28624},
url = {https://juser.fz-juelich.de/record/904371},
}